.d-flex{
	display: flex;
	display: -webkit-box;
	display: -webkit-flex;
}
.position-relative{
	position: relative;
}
.position-absolute{
	position: absolute;
}
.text-align{
	text-align: center;
}
.flex-column{
	flex-direction: column;
}
.margin-0{
	margin: 0 auto;
}
.justify-content-center{
	justify-content: center;
}
.justify-content-between{
	justify-content: space-between;
}
.flex-column{
	flex-direction: column;
}
.align-items-center{
	align-items: center;
}
/* 宽高 */
.w10{width: 10%;}
.w20{width: 20%;}
.w30{width: 30%;}
.w40{width: 40%;}
.w50{width: 50%;}
.w60{width: 60%;}
.w70{width: 70%;}
.w80{width: 80%;}
.w90{width: 90%;}
.w100{width: 100%;}
.h10{height: 10%;}
.h20{height: 20%;}
.h30{height: 30%;}
.h40{height: 40%;}
.h50{height: 50%;}
.h60{height: 60%;}
.h70{height:	70%;}
.h80{height: 80%;}
.h90{height: 90%;}
.h100{height: 100%;}

